<template>
  <div class="login-container" style=" display: flex;justify-content: center; align-items: center;">

    <el-row style="width: 1100px; position:relative;z-index:3;">
      <el-col style="width: 20%;">
        <img src="../../assets/asset.png" alt="" style="width: 350px; height: 470px; ">
      </el-col>
      <el-col style="width: 50%">
        <el-card style="width: 500px; margin-left: 300px;  left: 30%;  border-radius: 15px;">
          <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
            <div class="title-container">
              <h3 class="title">基于SpringBoot的账务管理系统</h3>
            </div>
            <el-form-item prop="username">
              <span class="svg-container">
                <svg-icon icon-class="user" />
              </span>
              <el-input ref="username" v-model="loginForm.username" placeholder="请输入用户名！" name="username" type="text" tabindex="1" auto-complete="on" />
            </el-form-item>

            <el-form-item prop="password">
              <span class="svg-container">
                <svg-icon icon-class="password" />
              </span>
              <el-input
                :key="passwordType"
                ref="password"
                v-model="loginForm.password"
                :type="passwordType"
                placeholder="请输入密码！"
                name="password"
                tabindex="2"
                auto-complete="on"
                @keyup.enter.native="handleLogin"
              />
              <span class="show-pwd" @click="showPwd">
                <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
              </span>
            </el-form-item>
            <el-row>
              <el-col :span="16">
                <el-form-item prop="captcha">
                  <span class="svg-container">
                    <svg-icon icon-class="form" />
                  </span>
                  <el-input ref="captcha" v-model="loginForm.captcha" placeholder="请输入验证码！" name="captcha" type="text" tabindex="1" auto-complete="on" />
                </el-form-item>
              </el-col>
              <el-col :span="8">
                <a href="javascript:void(0)" @click="createCode()"><img
                  :src="verifitycode"
                  style="width:90%; margin-left: 15px; margin-top: 4px"
                  alt="图片加载失败"
                ></a>
              </el-col>
            </el-row>
            <el-button :loading="loading" type="primary" style="width: 100%; margin-bottom: 10px" @click.native.prevent="handleLogin">登录</el-button>
            <el-row>
              <el-col style="width: 20%;margin-left: 83%">
                <el-link type="primary" style="margin-bottom: 15px" @click="changeRegister()">点我注册！</el-link>
              </el-col>
            </el-row>
          </el-form>
        </el-card>
      </el-col>
    </el-row>
    <vue-particles color="#dde3e9" />
  </div>
</template>

<script>
// import { validUsername } from '@/utils/validate'
import { captch } from '@/api/user'
export default {
  name: 'Login',
  data() {
    const validateUsername = (rule, value, callback) => {
      // if (!validUsername(value)) {}
      if (value.length < 5) {
        callback(new Error('请输入5位数以上的的用户名！'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('请输入6位以上的密码！'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        captcha: '',
        username: 'admin',
        password: '111111'
      },
      verifitycode: '',
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }],
        captcha: [{ required: true, min: 4, max: 4, message: '请输入4位验证码', trigger: 'blur' }]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  created() {
    this.createCode()
  },
  methods: {
    createCode() {
      this.verifitycode = '/service-system/admin/captch/' + Date.now()
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs['loginForm'].validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm)
            .then(() => {
              this.$router.push({ path: this.redirect || '/' })
              this.loading = false
            })
            .catch(() => {
              this.loading = false
            })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    changeRegister() {
      this.$router.push({ name: 'register' })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #e5e5e5;
$light_gray: #1c0909;
$cursor: #d23b3b;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  background-attachment: scroll;
  background-repeat: repeat;
  width: 100%;
  height: 100%;
  background-image: url("../../assets/pg4.png");
  background-size: 100% 100%;
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #694747;
#particles-js{
  width: 100%;
  z-index: 1;
  height: calc(100% - 100px);
  position: absolute;   //设置absolute,其他DIV设置为relative，这样这个例子效果就作为背景
}
.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 15px 15px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
